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(No Model.

S. COOPER.

APPARATUS FOR ADMINISTERING ETHER. No. 287.098. Patented Oct. 23, 1883-,

m l/1mm N. FEYERS Phukolilkognphn. Waxhinglm D. C

NITED STATES PATENT OFFICE.

SHERMAN COOPER, OF VESTFIELD, NEV JERSEYY.

APPARATUS FOR ADMINISTERING ETHER.

SPECIFICATION forming part of Letters Patent No. 287,098, dated October 22, 188.

Application filed February 1, 1883. (No model.)

T0 aZZ whom, it may concern Be it known that I, SHERMAN Coornn, a citizen of the United States, residing at \Vestfield, in the county of Union'and State of New Jersey, have invented a certain new and Improved Process of Vaporizing and Administering Ether, of which the following is a full, clear, and exact description.

My invention relates to an improved process of vaporizing and administering ether, the object being to mix the ether with a due proportion of atmospheric air, and to discharge it at the point of application, thus mixed with air, in the form of a vapor or dry gas. i

To this end my invention consists in forcing a spray of ether by means of airpressure into a heated tube or other receptacle, whereby the ether is vaporized, and is discharged therefrom by the same pressure in the form of a vapor or dry gas. The invention also consists in suitable appliances whereby the ether can be thus vaporized and distributed, all as hereinafter fully described.

In the accompanying drawing a central View of one form of appliance for vaporizing and distributing ether is shown, the vaporizing-tube and its heating apparatus being shown in part section, and the air-pump or bellows and discharge-funnel or face-mask in elevation.

A designates a cylindrical vessel having necks B B. This vessel, which I term the ether-reservoir, is intended to receive the ether to be operated upon, and has a capacity of about four fluid ounces, although it may be made larger or smaller, if desired. The

' ether is introduced into the vessel A through the neck 13, and said neck is provided with a stopper, (6, which may be made of rubber,

cork, or other suitable material, so as to close the vessel tightly. The neck 13 terminates in a tube, 2), having an orifice near its upper nd, which is closed by a tube, 0. To the upper end of the tube b a smaller tube, 6, is soldered or otherwise attached, and this tube 6 extends up through the bottom of a cylindrical vessel,

supported above the vessel A by uprights E,

into a tube or pipe, D, set therein, and ex-' tending through the bottom and top of said vessel. This vessel, which I term the wa- (er-reservoir, consists of a double can, F F,

opening.

lined withpaper or other non-conducting material, formed by inserting one can into another, so as to make a tightfit, and interposing between them a filling or lining of paper, G. In the bottom of these cans F F, I form an opening which is covered by a deep cap, f, soldered to the bottom of the outer can, F, and the tube D extends through this opening into this cap f, and is soldered to the edges of the cans F F around said opening. The tops of the cans F F are provided with necks 99, having suitable stoppers, h h, whereby they can be tightly closed; and a central -opening is also cut therein, provided with a cap, H, having a convexed base, H, soldered over said Theotube D extends through this central opening into the base H of the cap H,

and said cap has a channel-way cut therein,

leading intothe tube D. A plug, I, is arranged in the cap H, so that said channel-way can be opened or closed at will.

J designates an air-pump or bellows connected by a rubber tube, 2', to an elastic bulb, K, which I term an air-reservoir, and j designates a rubber tube connecting said airbulb K to the tube 0.

L designates the discharge-funnel or facemask, connected to the cap H by a rubber tube, WVhen the ether-reservoir has a capacity of four ounces, I make the water-reservoir to hold a pint of water, and when the capacity of the ether-reservoir is increased or diminished, the capacity of the water-reservoir is to be proportionably increased or diminished.

The operation is as follows, viz: I first fill the ether-reservoir with ether, and then fill the water-reservoir with water through either of the necks, the water introduced to have a temperature of about 200 Fahrenheit, thus heating the tube 1). Air is then forced into the air-reservoir K, and a gradual pressure is exerted upon the air-pump J, driving the air through the tube 7' into the tube 0, where it acts upon the ether in the ether-reservoir, sucking it up into the tube 0, whence it escapes into the heated tube D-in the form of a spray,

and is vaporized by the heated tube D. The

I have found by practical experiments that ether will vaporize at a temperature 90 Fahrenheit; and I have also demonstrated by repeated tests that a pint of water heated to a temperature of 200 Fahrenheit will be more than sufficient to vaporize four ounces of ether introduced into the ether-reservoir at the temperature of the surrounding atmosphere, when operated upon as described.

The administration of ether by this method has many advantages, among which may be named the following, viz: concentration of the ether, so. as to obtain its full strength, thereby producing anaesthesia very quickly and without loss of material by evaporation; absence of nausea and resulting vomiting after the patient recovers from the effects of the ether, which is largely due to the fact that the ether is mixed with atmospheric air and is inhaled by the patient naturally. This also tends to lessen the liability of fatal results from the administration of ether to a patient in aweak condition, and increases the rapidity of the patients recovery from its effects.

What I claim as my invention, and desire to secure by Letters Patent, is- I 1. That improvement in the art of administering ether which consists in forcing a spray of ether by air-pressure into a heated tube,

whereby it is vaporized and forcibly expelled 0 'in the form of a vapor or dry gas at the point of application, substantially as specified.

2. As a means for administering ether in the form of a vapor or dry gas, the ether-reservoir A, having a neck, B, adapted to be closed, and cap B, terminating .in a tube, b, which is connected to atube, e, extending into a tube, D, adapted to be heated, and means for driving a current of air across said tube b, whereby a spray of ether is discharged into the tube D and vaporized, escaping thence in the form of a vapor or dry gas at the point of application, substantially as shown and described.

SHERMAN, COOPER.

Vitnesses:

ARTHUR O. WEBB, ERNEST O. WEBB. 

